160 



Although placed in the table with the species having 

 the elytra non-tuberculate, these organs certainly appear 

 slightly swollen in places on the disc. The male is a pecu- 

 liarly-rough, angular insect, but the female is quite normal- 

 looking, and rather strongly resembles the female of Iwplo- 

 stethus. 



Mandalotus avenaceus, n. sp. 



Male. Densely covered with muddy-brown, feebly- 

 mottled scales. With subdecumbent brownish setae. Front 

 tibiae rather sparsely ciliated. 



BostruTYi with carina distinct throughout. Antennae 

 rather thin. Prothorax feebly transverse, sides strongly and 

 regularly rounded ; median line distinct : with minute scat- 

 tered granules, almost or quite invisible before abrasion. 

 Elytra rather feebly trisinuate at base ; subcordate ; with 

 rows of large rounded punctures, much wider than interstices, 

 but appearing much smaller through clothing ; interstices 

 feebly alternately raised. A hdomen with basal segment 

 gently concave. Legs stout ; front coxae rather widely sepa- 

 rated ; front tibiae with a strong median ridge, ending pos- 

 teriorly in a strong obtuse tooth. Length 3 mm. 



Hah. — Victoria: Daylesford ("destroying oats." National 

 Museum). 



There are five specimens before me, but all are males ; 

 in most of them the elytra appear to be black, with the pro- 

 thorax, antennae, and tarsi reddish, and the other parts red- 

 dish-brown. The setae, although fairly numerous, are very 

 indistinct, except from the sides. The mottling on the pro- 

 thorax appears to form very feeble stripes. In general ap- 

 pearance close to arcuatus and trisinuafus, but readily dis- 

 tinguished therefrom by the granules of prothorax, and the 

 dentate front tibiae. 



Mandalotus albonotatus, n. sp. 



Male. Black; under surface and appendages more or 

 less red. Densely covered with muddy-brown scales, varie- 

 gated in places with sooty and white or whitish scales. With 

 stout semi-erect setae, mostly dark-brown, but in places white 

 or straw-coloured. Front tibiae with rather short ciliation. 



nostrum with carina quite concealed, except at its tip. 

 Antennae thin. Prothorax rather feebly transverse, sides 

 strongly rounded : median line distinct ; with dense and fairly 

 large but almost obsolete granules. ScuteUum distinct. 

 Elytra conjointly arcuate at base ; with series of large, round- 

 ed punctures, the width of or wider than interstices, but 

 apparently much narrower ; alternate interstices feebly raised, 

 the suture on its apical half more noticeably raised. Ahdo- 



